{
  "cveId": "CVE-2026-99135",
  "url": "https://patchblox.com/security/cve/CVE-2026-99135",
  "summary": "CVE-2026-99135 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-99135, released November 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "dm-integrity: fix infinite loop on discard with large tag size",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  dm-integrity: fix infinite loop on discard with large tag size  When integrity_metadata handles a discard, it fills a buffer with DISCARD_FILLER and writes it over the tags, max_blocks blocks at a time. If the kmalloc fails, the buffer is the on-stack array checksums_onstack and max_size is set to HASH_MAX_DIGESTSIZE. So if the tag size is larger than HASH_MAX_DIGESTSIZE, max_blocks is zero, bi_size is never decremented and the loop never terminates.  Fix this by using sizeof(checksums_onstack) as max_size. The array has MAX_TAG_SIZE bytes since commit b93b6643e9b5 (\u0022dm integrity: fix a crash with unusually large tag size\u0022), so max_blocks is at least 1.",
  "published": "2026-10-28T11:17:33Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "epss": 0.00185,
  "epssPercentile": 0.08159,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-99135",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-99135",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-99135",
      "released": "2026-11-03T18:58:21Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.13-1",
      "fix": "DEBIAN-CVE-2026-99135",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-99135",
      "released": "2026-11-03T18:58:21Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}